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Condensation
#1
I am new to CPAP, been on it for 3 weeks.

I am using Resmed Air Sense 10 Autoset with ClimateLine Air tubing.

Every morning I noticed that there is condensation in the water chamber and mask including elbow.

Temperature is 29 degrees Celsius and humidity is 5.

I put the hose under my doona at night.

How do I prevent the condensation?
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#2
Try reducing the temp to around 26. You can also try reducing the humidity to 2 or 3.

I had the same problem with my s9 auto set,although since using the climateline pipe I haven’t had problems.

I hope this helps.
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#3
(08-11-2018, 08:26 AM)Glamdrhel Wrote: Try reducing the temp to around 26. You can also try reducing the humidity to 2 or 3.

I had the same problem with my s9 auto set,although since using the climateline pipe I haven’t had problems.

I hope this helps.

Thanks for the suggestion.
However, experiencing dry mouth and tongue at current humidity of 5 so not keen on reducing it down to 3.
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#4
See if your machine have an auto setting for humidity, if it have you can try that also.
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#5
(08-11-2018, 08:36 AM)sylviay Wrote:
(08-11-2018, 08:26 AM)Glamdrhel Wrote: Try reducing the temp to around 26. You can also try reducing the humidity to 2 or 3.

I had the same problem with my s9 auto set,although since using the climateline pipe I haven’t had problems.

I hope this helps.

Thanks for the suggestion.
However, experiencing dry mouth and tongue at current humidity of 5 so not keen on reducing it down to 3.

Welcome to the forum sylviay.

Condensation in the humidifier chamber is normal. Condensation in the mask is not. Turning the tube temperature down will only increase the likelihood of condensation in the mask. The first thing I would try is running your humidifier in the auto mode. Auto mode sets the temp at around 27 c and the humidity at 85%. More importantly, it self adjusts in order to prevent condensation. A hose cover in addition to your heated hose may work as well.

Dry mouth is usually caused by breathing through your mouth while under pressure. It can happen with all masks, including full face masks. I have to use a chin strap to help keep my mouth closed, even with a full face mask. Member OpalRose describes a method she uses to stop mouth leaks called the Tongue Suck Technique:

Place your tongue to the roof of your mouth with tip of tongue behind front teeth.  Slowly suck upwards and back. This places the tongue in a natural position, with the back of tongue sealing the back of the throat so that if you open your mouth/jaw while sleeping, no air will escape.

Using dry mouth remedies can also help alleviate dry mouth symptoms. Some popular ones are Xliment and Act lozenges and Biotene gel and Biotene spray.
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#6
With that high temp setting on the hose and the moderate humidity setting for the machine, and you are laying the hose under something that should insulate it somewhat, this tells me that the ambient humidity in the room is already moderate-to-high.  You are effectively super-saturating the air, or attempting to humidify it higher than the dew point between the water chamber and your mask, including the mask itself.  The result is something you know all too well.

You must find a way to minimize the rain-out inside the mask.  Remember, not only are you intent upon humidifying the air reaching you from the machine, but your nose, turbinate bones, trachea, bronchia, lungs, and then back out again are also attempting to add to the moisture load of the air that must get out of the mask and expelled into atmosphere.  It's obviously too much.

I don't think you need quite so high a temp, but lowering it will only make things worse at this dew-point.  So, to me, the clear decision would be to reduce humidity.  FWIW, I keep mine set to a lonely "1" on my machine.  I keep my tube temp at 27 deg C, and whereas I previously had quite a bit of rain-out during my trails with PAP, I have never had it since taking my new machine home seven months ago.
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#7
You'd have to experiment a bit with settings to find your personal best results. You can try setting the humidifier to manual and adjusting the humidity setting from 1-8, higher numbers results in increased humidity. The heated hose probably might need set towards the higher end of the scale to minimize the rain out effect. Including a full length hose cover may help too.
Dave

I'm not a doctor in real or fictional life. My posts include opinions based upon user experience regarding CPAP therapy and should not be considered medically professional direction or advice. Even a 1,000 mile trip requires a good first step. My recommended first steps include getting good walking shoes, 1 great cup of coffee, and a good GPS.

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#8
I find a mask liner helpful.  I just make my own out an old tshirt. 

Also I fling my hose over the headboard.  That also helps with condensation.  Alternatively, you could set the machine lower than your mattress.

BTW what is a doona?
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#9
emphasizing a point made above: dry mouth is more likely due to mouth breathing regardless of humidity.
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#10
Mouth breathing will likely cause dry mouth. You're correct.
Dave

I'm not a doctor in real or fictional life. My posts include opinions based upon user experience regarding CPAP therapy and should not be considered medically professional direction or advice. Even a 1,000 mile trip requires a good first step. My recommended first steps include getting good walking shoes, 1 great cup of coffee, and a good GPS.

Wiki Info for Beginners
Sleepyhead Chart Organization
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